# -*- coding: utf-8 -*-
# BSD 3-Clause License
#
# Copyright (c) 2017
# All rights reserved.
# Copyright 2022 Huawei Technologies Co., Ltd
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this
#   list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice,
#   this list of conditions and the following disclaimer in the documentation
#   and/or other materials provided with the distribution.
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#   contributors may be used to endorse or promote products derived from
#   this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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# ==========================================================================

# -*- coding: utf-8 -*-
# BSD 3-Clause License
#
# Copyright (c) 2017
# All rights reserved.
# Copyright 2022 Huawei Technologies Co., Ltd
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this
#   list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright notice,
#   this list of conditions and the following disclaimer in the documentation
#   and/or other materials provided with the distribution.
#
# * Neither the name of the copyright holder nor the names of its
#   contributors may be used to endorse or promote products derived from
#   this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# ==========================================================================

# Copyright (c) OpenMMLab. All rights reserved.
import mmcv


def cityscapes_classes():
    """Cityscapes class names for external use."""
    return [
        'road', 'sidewalk', 'building', 'wall', 'fence', 'pole',
        'traffic light', 'traffic sign', 'vegetation', 'terrain', 'sky',
        'person', 'rider', 'car', 'truck', 'bus', 'train', 'motorcycle',
        'bicycle'
    ]


def ade_classes():
    """ADE20K class names for external use."""
    return [
        'wall', 'building', 'sky', 'floor', 'tree', 'ceiling', 'road', 'bed ',
        'windowpane', 'grass', 'cabinet', 'sidewalk', 'person', 'earth',
        'door', 'table', 'mountain', 'plant', 'curtain', 'chair', 'car',
        'water', 'painting', 'sofa', 'shelf', 'house', 'sea', 'mirror', 'rug',
        'field', 'armchair', 'seat', 'fence', 'desk', 'rock', 'wardrobe',
        'lamp', 'bathtub', 'railing', 'cushion', 'base', 'box', 'column',
        'signboard', 'chest of drawers', 'counter', 'sand', 'sink',
        'skyscraper', 'fireplace', 'refrigerator', 'grandstand', 'path',
        'stairs', 'runway', 'case', 'pool table', 'pillow', 'screen door',
        'stairway', 'river', 'bridge', 'bookcase', 'blind', 'coffee table',
        'toilet', 'flower', 'book', 'hill', 'bench', 'countertop', 'stove',
        'palm', 'kitchen island', 'computer', 'swivel chair', 'boat', 'bar',
        'arcade machine', 'hovel', 'bus', 'towel', 'light', 'truck', 'tower',
        'chandelier', 'awning', 'streetlight', 'booth', 'television receiver',
        'airplane', 'dirt track', 'apparel', 'pole', 'land', 'bannister',
        'escalator', 'ottoman', 'bottle', 'buffet', 'poster', 'stage', 'van',
        'ship', 'fountain', 'conveyer belt', 'canopy', 'washer', 'plaything',
        'swimming pool', 'stool', 'barrel', 'basket', 'waterfall', 'tent',
        'bag', 'minibike', 'cradle', 'oven', 'ball', 'food', 'step', 'tank',
        'trade name', 'microwave', 'pot', 'animal', 'bicycle', 'lake',
        'dishwasher', 'screen', 'blanket', 'sculpture', 'hood', 'sconce',
        'vase', 'traffic light', 'tray', 'ashcan', 'fan', 'pier', 'crt screen',
        'plate', 'monitor', 'bulletin board', 'shower', 'radiator', 'glass',
        'clock', 'flag'
    ]


def voc_classes():
    """Pascal VOC class names for external use."""
    return [
        'background', 'aeroplane', 'bicycle', 'bird', 'boat', 'bottle', 'bus',
        'car', 'cat', 'chair', 'cow', 'diningtable', 'dog', 'horse',
        'motorbike', 'person', 'pottedplant', 'sheep', 'sofa', 'train',
        'tvmonitor'
    ]


def cocostuff_classes():
    """CocoStuff class names for external use."""
    return [
        'person', 'bicycle', 'car', 'motorcycle', 'airplane', 'bus', 'train',
        'truck', 'boat', 'traffic light', 'fire hydrant', 'stop sign',
        'parking meter', 'bench', 'bird', 'cat', 'dog', 'horse', 'sheep',
        'cow', 'elephant', 'bear', 'zebra', 'giraffe', 'backpack', 'umbrella',
        'handbag', 'tie', 'suitcase', 'frisbee', 'skis', 'snowboard',
        'sports ball', 'kite', 'baseball bat', 'baseball glove', 'skateboard',
        'surfboard', 'tennis racket', 'bottle', 'wine glass', 'cup', 'fork',
        'knife', 'spoon', 'bowl', 'banana', 'apple', 'sandwich', 'orange',
        'broccoli', 'carrot', 'hot dog', 'pizza', 'donut', 'cake', 'chair',
        'couch', 'potted plant', 'bed', 'dining table', 'toilet', 'tv',
        'laptop', 'mouse', 'remote', 'keyboard', 'cell phone', 'microwave',
        'oven', 'toaster', 'sink', 'refrigerator', 'book', 'clock', 'vase',
        'scissors', 'teddy bear', 'hair drier', 'toothbrush', 'banner',
        'blanket', 'branch', 'bridge', 'building-other', 'bush', 'cabinet',
        'cage', 'cardboard', 'carpet', 'ceiling-other', 'ceiling-tile',
        'cloth', 'clothes', 'clouds', 'counter', 'cupboard', 'curtain',
        'desk-stuff', 'dirt', 'door-stuff', 'fence', 'floor-marble',
        'floor-other', 'floor-stone', 'floor-tile', 'floor-wood', 'flower',
        'fog', 'food-other', 'fruit', 'furniture-other', 'grass', 'gravel',
        'ground-other', 'hill', 'house', 'leaves', 'light', 'mat', 'metal',
        'mirror-stuff', 'moss', 'mountain', 'mud', 'napkin', 'net', 'paper',
        'pavement', 'pillow', 'plant-other', 'plastic', 'platform',
        'playingfield', 'railing', 'railroad', 'river', 'road', 'rock', 'roof',
        'rug', 'salad', 'sand', 'sea', 'shelf', 'sky-other', 'skyscraper',
        'snow', 'solid-other', 'stairs', 'stone', 'straw', 'structural-other',
        'table', 'tent', 'textile-other', 'towel', 'tree', 'vegetable',
        'wall-brick', 'wall-concrete', 'wall-other', 'wall-panel',
        'wall-stone', 'wall-tile', 'wall-wood', 'water-other', 'waterdrops',
        'window-blind', 'window-other', 'wood'
    ]


def loveda_classes():
    """LoveDA class names for external use."""
    return [
        'background', 'building', 'road', 'water', 'barren', 'forest',
        'agricultural'
    ]


def potsdam_classes():
    """Potsdam class names for external use."""
    return [
        'impervious_surface', 'building', 'low_vegetation', 'tree', 'car',
        'clutter'
    ]


def vaihingen_classes():
    """Vaihingen class names for external use."""
    return [
        'impervious_surface', 'building', 'low_vegetation', 'tree', 'car',
        'clutter'
    ]


def isaid_classes():
    """iSAID class names for external use."""
    return [
        'background', 'ship', 'store_tank', 'baseball_diamond', 'tennis_court',
        'basketball_court', 'Ground_Track_Field', 'Bridge', 'Large_Vehicle',
        'Small_Vehicle', 'Helicopter', 'Swimming_pool', 'Roundabout',
        'Soccer_ball_field', 'plane', 'Harbor'
    ]


def stare_classes():
    """stare class names for external use."""
    return ['background', 'vessel']


def cityscapes_palette():
    """Cityscapes palette for external use."""
    return [[128, 64, 128], [244, 35, 232], [70, 70, 70], [102, 102, 156],
            [190, 153, 153], [153, 153, 153], [250, 170, 30], [220, 220, 0],
            [107, 142, 35], [152, 251, 152], [70, 130, 180], [220, 20, 60],
            [255, 0, 0], [0, 0, 142], [0, 0, 70], [0, 60, 100], [0, 80, 100],
            [0, 0, 230], [119, 11, 32]]


def ade_palette():
    """ADE20K palette for external use."""
    return [[120, 120, 120], [180, 120, 120], [6, 230, 230], [80, 50, 50],
            [4, 200, 3], [120, 120, 80], [140, 140, 140], [204, 5, 255],
            [230, 230, 230], [4, 250, 7], [224, 5, 255], [235, 255, 7],
            [150, 5, 61], [120, 120, 70], [8, 255, 51], [255, 6, 82],
            [143, 255, 140], [204, 255, 4], [255, 51, 7], [204, 70, 3],
            [0, 102, 200], [61, 230, 250], [255, 6, 51], [11, 102, 255],
            [255, 7, 71], [255, 9, 224], [9, 7, 230], [220, 220, 220],
            [255, 9, 92], [112, 9, 255], [8, 255, 214], [7, 255, 224],
            [255, 184, 6], [10, 255, 71], [255, 41, 10], [7, 255, 255],
            [224, 255, 8], [102, 8, 255], [255, 61, 6], [255, 194, 7],
            [255, 122, 8], [0, 255, 20], [255, 8, 41], [255, 5, 153],
            [6, 51, 255], [235, 12, 255], [160, 150, 20], [0, 163, 255],
            [140, 140, 140], [250, 10, 15], [20, 255, 0], [31, 255, 0],
            [255, 31, 0], [255, 224, 0], [153, 255, 0], [0, 0, 255],
            [255, 71, 0], [0, 235, 255], [0, 173, 255], [31, 0, 255],
            [11, 200, 200], [255, 82, 0], [0, 255, 245], [0, 61, 255],
            [0, 255, 112], [0, 255, 133], [255, 0, 0], [255, 163, 0],
            [255, 102, 0], [194, 255, 0], [0, 143, 255], [51, 255, 0],
            [0, 82, 255], [0, 255, 41], [0, 255, 173], [10, 0, 255],
            [173, 255, 0], [0, 255, 153], [255, 92, 0], [255, 0, 255],
            [255, 0, 245], [255, 0, 102], [255, 173, 0], [255, 0, 20],
            [255, 184, 184], [0, 31, 255], [0, 255, 61], [0, 71, 255],
            [255, 0, 204], [0, 255, 194], [0, 255, 82], [0, 10, 255],
            [0, 112, 255], [51, 0, 255], [0, 194, 255], [0, 122, 255],
            [0, 255, 163], [255, 153, 0], [0, 255, 10], [255, 112, 0],
            [143, 255, 0], [82, 0, 255], [163, 255, 0], [255, 235, 0],
            [8, 184, 170], [133, 0, 255], [0, 255, 92], [184, 0, 255],
            [255, 0, 31], [0, 184, 255], [0, 214, 255], [255, 0, 112],
            [92, 255, 0], [0, 224, 255], [112, 224, 255], [70, 184, 160],
            [163, 0, 255], [153, 0, 255], [71, 255, 0], [255, 0, 163],
            [255, 204, 0], [255, 0, 143], [0, 255, 235], [133, 255, 0],
            [255, 0, 235], [245, 0, 255], [255, 0, 122], [255, 245, 0],
            [10, 190, 212], [214, 255, 0], [0, 204, 255], [20, 0, 255],
            [255, 255, 0], [0, 153, 255], [0, 41, 255], [0, 255, 204],
            [41, 0, 255], [41, 255, 0], [173, 0, 255], [0, 245, 255],
            [71, 0, 255], [122, 0, 255], [0, 255, 184], [0, 92, 255],
            [184, 255, 0], [0, 133, 255], [255, 214, 0], [25, 194, 194],
            [102, 255, 0], [92, 0, 255]]


def voc_palette():
    """Pascal VOC palette for external use."""
    return [[0, 0, 0], [128, 0, 0], [0, 128, 0], [128, 128, 0], [0, 0, 128],
            [128, 0, 128], [0, 128, 128], [128, 128, 128], [64, 0, 0],
            [192, 0, 0], [64, 128, 0], [192, 128, 0], [64, 0, 128],
            [192, 0, 128], [64, 128, 128], [192, 128, 128], [0, 64, 0],
            [128, 64, 0], [0, 192, 0], [128, 192, 0], [0, 64, 128]]


def cocostuff_palette():
    """CocoStuff palette for external use."""
    return [[0, 192, 64], [0, 192, 64], [0, 64, 96], [128, 192, 192],
            [0, 64, 64], [0, 192, 224], [0, 192, 192], [128, 192, 64],
            [0, 192, 96], [128, 192, 64], [128, 32, 192], [0, 0, 224],
            [0, 0, 64], [0, 160, 192], [128, 0, 96], [128, 0, 192],
            [0, 32, 192], [128, 128, 224], [0, 0, 192], [128, 160, 192],
            [128, 128, 0], [128, 0, 32], [128, 32, 0], [128, 0, 128],
            [64, 128, 32], [0, 160, 0], [0, 0, 0], [192, 128, 160], [0, 32, 0],
            [0, 128, 128], [64, 128, 160], [128, 160, 0], [0, 128, 0],
            [192, 128, 32], [128, 96, 128], [0, 0, 128], [64, 0, 32],
            [0, 224, 128], [128, 0, 0], [192, 0, 160], [0, 96, 128],
            [128, 128, 128], [64, 0, 160], [128, 224, 128], [128, 128, 64],
            [192, 0, 32], [128, 96, 0], [128, 0, 192], [0, 128, 32],
            [64, 224, 0], [0, 0, 64], [128, 128, 160], [64, 96, 0],
            [0, 128, 192], [0, 128, 160], [192, 224, 0], [0, 128, 64],
            [128, 128, 32], [192, 32, 128], [0, 64, 192], [0, 0, 32],
            [64, 160, 128], [128, 64, 64], [128, 0, 160], [64, 32, 128],
            [128, 192, 192], [0, 0, 160], [192, 160, 128], [128, 192, 0],
            [128, 0, 96], [192, 32, 0], [128, 64, 128], [64, 128, 96],
            [64, 160, 0], [0, 64, 0], [192, 128, 224], [64, 32, 0],
            [0, 192, 128], [64, 128, 224], [192, 160, 0], [0, 192, 0],
            [192, 128, 96], [192, 96, 128], [0, 64, 128], [64, 0, 96],
            [64, 224, 128], [128, 64, 0], [192, 0, 224], [64, 96, 128],
            [128, 192, 128], [64, 0, 224], [192, 224, 128], [128, 192, 64],
            [192, 0, 96], [192, 96, 0], [128, 64, 192], [0, 128, 96],
            [0, 224, 0], [64, 64, 64], [128, 128, 224], [0, 96, 0],
            [64, 192, 192], [0, 128, 224], [128, 224, 0], [64, 192, 64],
            [128, 128, 96], [128, 32, 128], [64, 0, 192], [0, 64, 96],
            [0, 160, 128], [192, 0, 64], [128, 64, 224], [0, 32, 128],
            [192, 128, 192], [0, 64, 224], [128, 160, 128], [192, 128, 0],
            [128, 64, 32], [128, 32, 64], [192, 0, 128], [64, 192, 32],
            [0, 160, 64], [64, 0, 0], [192, 192, 160], [0, 32, 64],
            [64, 128, 128], [64, 192, 160], [128, 160, 64], [64, 128, 0],
            [192, 192, 32], [128, 96, 192], [64, 0, 128], [64, 64, 32],
            [0, 224, 192], [192, 0, 0], [192, 64, 160], [0, 96, 192],
            [192, 128, 128], [64, 64, 160], [128, 224, 192], [192, 128, 64],
            [192, 64, 32], [128, 96, 64], [192, 0, 192], [0, 192, 32],
            [64, 224, 64], [64, 0, 64], [128, 192, 160], [64, 96, 64],
            [64, 128, 192], [0, 192, 160], [192, 224, 64], [64, 128, 64],
            [128, 192, 32], [192, 32, 192], [64, 64, 192], [0, 64, 32],
            [64, 160, 192], [192, 64, 64], [128, 64, 160], [64, 32, 192],
            [192, 192, 192], [0, 64, 160], [192, 160, 192], [192, 192, 0],
            [128, 64, 96], [192, 32, 64], [192, 64, 128], [64, 192, 96],
            [64, 160, 64], [64, 64, 0]]


def loveda_palette():
    """LoveDA palette for external use."""
    return [[255, 255, 255], [255, 0, 0], [255, 255, 0], [0, 0, 255],
            [159, 129, 183], [0, 255, 0], [255, 195, 128]]


def potsdam_palette():
    """Potsdam palette for external use."""
    return [[255, 255, 255], [0, 0, 255], [0, 255, 255], [0, 255, 0],
            [255, 255, 0], [255, 0, 0]]


def vaihingen_palette():
    """Vaihingen palette for external use."""
    return [[255, 255, 255], [0, 0, 255], [0, 255, 255], [0, 255, 0],
            [255, 255, 0], [255, 0, 0]]


def isaid_palette():
    """iSAID palette for external use."""
    return [[0, 0, 0], [0, 0, 63], [0, 63, 63], [0, 63, 0], [0, 63, 127],
            [0, 63, 191], [0, 63, 255], [0, 127, 63], [0, 127,
                                                       127], [0, 0, 127],
            [0, 0, 191], [0, 0, 255], [0, 191, 127], [0, 127, 191],
            [0, 127, 255], [0, 100, 155]]


def stare_palette():
    """STARE palette for external use."""
    return [[120, 120, 120], [6, 230, 230]]


dataset_aliases = {
    'cityscapes': ['cityscapes'],
    'ade': ['ade', 'ade20k'],
    'voc': ['voc', 'pascal_voc', 'voc12', 'voc12aug'],
    'loveda': ['loveda'],
    'potsdam': ['potsdam'],
    'vaihingen': ['vaihingen'],
    'cocostuff': [
        'cocostuff', 'cocostuff10k', 'cocostuff164k', 'coco-stuff',
        'coco-stuff10k', 'coco-stuff164k', 'coco_stuff', 'coco_stuff10k',
        'coco_stuff164k'
    ],
    'isaid': ['isaid', 'iSAID'],
    'stare': ['stare', 'STARE']
}


def get_classes(dataset):
    """Get class names of a dataset."""
    alias2name = {}
    for name, aliases in dataset_aliases.items():
        for alias in aliases:
            alias2name[alias] = name

    if mmcv.is_str(dataset):
        if dataset in alias2name:
            labels = eval(alias2name[dataset] + '_classes()')
        else:
            raise ValueError(f'Unrecognized dataset: {dataset}')
    else:
        raise TypeError(f'dataset must a str, but got {type(dataset)}')
    return labels


def get_palette(dataset):
    """Get class palette (RGB) of a dataset."""
    alias2name = {}
    for name, aliases in dataset_aliases.items():
        for alias in aliases:
            alias2name[alias] = name

    if mmcv.is_str(dataset):
        if dataset in alias2name:
            labels = eval(alias2name[dataset] + '_palette()')
        else:
            raise ValueError(f'Unrecognized dataset: {dataset}')
    else:
        raise TypeError(f'dataset must a str, but got {type(dataset)}')
    return labels
